Thursday, March 07, 2019, 07:48: IV4 reset, BV6 & TMS TP6 reset.

Turbo pump restarted.

Auto cooling @ 2A per min.

Thursday, March 07, 2019, 08:40: Speed up Auto-cooling to 4A per min.

Thursday, March 07, 2019, 11:06: Power cycled the control boxes for the turbo pumps one by one. Operation in back to normal.

Thursday, March 07, 2019, 11:09: Switched to filament 2 on IG6. Reset.

Sparks from BIAS to EZL noticed at 1 kV. A wire was moved away from insulator 'O'

Sparks from BIAS to EZL @ 3kV

Friday, March 08, 2019, 11:00: Power supplies checked with John Chow.

BIAS (V) ------------------- EZL (V)

Set@-Read-Actual-----Set@-Read-Actual

1000- 982- 816---------1000- 987- 996

1500-1480-1300-------1500-1475-1530

2000-1993-1600-------2000-1993-1997

2500-2491-2070-------10000-9993-9964

3000-2989-2500

3500-3487-2900

4000-3985-3360

5000-4982-4145

Note* Lower reading on BIAS. Check the scaling with controls group.

Friday, March 08, 2019, 11:14: RGA, Ion gauge, Turbo pumps off.

Friday, March 08, 2019, 13:01: Venting for visual inspection.

Visual & Multimeter checks appear ok.

Friday, March 08, 2019, 14:37: Roughing.

Friday, March 08, 2019, 15:00: Turbos on.

Monday, March 11, 2019, 09:00: Switch everything on & slowly increase EZL & BIAS together

Monday, March 11, 2019, 09:30: Spark at approx 12-13 kV on BIAS. TGHT to 600A? Readback.

TGHT PS readback issues. John C contacted.

Power down.

Prep for TGHT PS removal. Possible capacitive effect? Test TS w/o TGHT PS after.

Monday, March 11, 2019, 13:55: New TGHT PS installed.

Tuesday, March 12, 2019, 08:37: Power / sources on

Tuesday, March 12, 2019, 08:50: BIAS to over 3kV. EZL set to 1 kV, but charged to over 5.5 kV on its own.

Tuesday, March 12, 2019, 09:30: Electrical check in the HV cage revealed a light oxide coating on the EZL post 'O'. This appears to have insulated the nut & feed through. Will require venting & removal to clean.

Ion gauge, turbo pumps off.

Tuesday, March 12, 2019, 11:10: Venting.

Wednesday, March 13, 2019, 08:30: Roughing. The brass nut & spark cap were polished, cleaned and re-installed. Other connections & wires cleaned.

Wednesday, March 13, 2019, 09:10: Turbo pumps started. Wiring up top re-connected.

Update* EZL PS removed. Tested by John C & Tomislav. The HV enable circuit wouldn't activate. Upon further investigating into the control and voltage regulating circuits of the PS, they found that the control ICs are 40% under powered, only getting 10V instead of 15V from its voltage regulator.

EZL PS to be replaced.

Wednesday, March 20, 2019, 07:03: Turbo pumps off

Wednesday, March 20, 2019, 08:28: Venting

Tuesday, January 08, 2019, 08:00: Epics white out fixed. Ref: Fault report 11981.

Tuesday, January 08, 2019, 08:10: IV4 reset. Turbo Pumps on

TMS:IG6 & TSG:IG1 not responding. Timing out. Edi contacted

TMS:IG6 - Filament switched on controller.

TSG:IG1 - Filament switched over. Cable to ion gauge is burnt. Black wire inside the housing had melted along with the edges of the plastic. Replaced the entire cable & reconnected the ion gauge to the controller.

Tuesday, January 08, 2019, 08:48: IG6 & IG1 operation resumed. Vacuum pump down continued.

Tuesday, January 08, 2019, 08:55: FS5 waterline tightened for leak check. All lines closed.

Tuesday, January 08, 2019, 09:03: RGA restarted/on.

Tuesday, January 08, 2019, 09:05: Opening waterlines. vacuum at 2.66e-06T. Control room notified.

Tuesday, January 08, 2019, 09:10: Waterlines opened. Vacuum @ 2.57e-06T. No response on RGA.

Tuesday, January 08, 2019, 09:14: No leak noted on the FS#5 paddle wheel. Fixed with tightening.

Tuesday, January 08, 2019, 09:20: Control room noted 7.6L fill (1/4" drop approx) in DI water on this line. (Note this next year)

Due to previous issues, a full run / test should be performed on the ISAC Test Stand.

Friday, April 05, 2019, 07:00: RGA on.

Friday, April 05, 2019, 07:03: Begin opening / closing gas lines until they can be opened & stable.

Friday, April 05, 2019, 07:14: Gas lines open.

Friday, April 05, 2019, 07:16: Power / sources on. Vacuum down to 1.25e-06T

Friday, April 05, 2019, 07:18: Optics on & Set.

Friday, April 05, 2019, 07:19: IV4 Opened.

Friday, April 05, 2019, 07:21: Auto-ramping TGHT / TBHT to 300 / 200 A @ 2A per min

Friday, April 05, 2019, 07:28: BIAS / EZL / EE @ 30 / 13 / 1.5 kV. Anode @ 200 V.

Friday, April 05, 2019, 09:40: Auto-ramping TGHT / TBHT to 580 / 290 A @ 2A per min 

Friday, April 05, 2019, 14:01: Beam on FC0 & wire scans. Mass scan provides no reading. (Max current after CONST2 has changed). Inquire why.

No sparks have occurred on this run. Operationally, appears the PS switches were effective.

Friday, April 05, 2019, 14:05: Begin auto-cooling @ 2A per min.

Friday, April 05, 2019, 14:56 : BIAS / EZL / EE @ 0 kV. Anode @ 0 V.

Monday, April 08, 2019, 06:57: RGA off. Gas lines closed. IV4 Closed.

Monday, April 08, 2019, 07:01: Power / Sources off.

Monday, April 08, 2019, 07:01: IG1 off. Turbo pumps off.

Monday, April 08, 2019, 08:11: Venting.

Sometime around 00:30 Sunday, October 28, 2018, the ISAC test stand lost communication to the PLC and shut down abruptly.

Monday, October 29, 2018, 09:00: PLC communications issues.

Rod N. was contacted this morning& the issues fixed by controls group.

Due to HV sparking & possible water leaks on the previous TiC & Ta targets, checks are to be performed.

Chamber is empty. U-Line installed. All waterlines purged. FS#2, 3, 4, & 5 are closed.

Vacuum Group LD #2 - Connected to TP1B backing line

Tuesday, August 06, 2024, 15:50: Vacuum @ 3.38e-06T.

Tuesday, August 06, 2024, 15:52: No He connected. 7.0 E-09 atm-cc. LD TP pressure 1.0e-03T.

Tuesday, August 06, 2024, 16:20: No He connected. 1.1 E-08 atm-cc. LD TP pressure 1.0e-03T.

Tuesday, August 06, 2024, 16:23: Open to chamber. 1.6 E-08 atm-cc. LD TP pressure 1.0e-03T. Vacuum @ 2.97e-06T.

Tuesday, August 06, 2024, 16:26: 20 PSI. 1.6 E-08 atm-cc. LD TP pressure 1.0e-03T. Vacuum @ 2.97e-06T.

Tuesday, August 06, 2024, 16:32: FS#5 Charged with 20 PSI He. 1.6 E-08 atm-cc. LD TP pressure 1.0e-03T. Vacuum @ 2.75e-06T.

Tuesday, August 06, 2024, 16:34: Close FS#5

Tuesday, August 06, 2024, 16:35: FS#4 Charged with 20 PSI He. Increase to 2.5 E-08 atm-cc. LD TP pressure 1.0e-03T. Vacuum @ 2.75e-06T.

Tuesday, August 06, 2024, 16:42: While purging FS#4 with HPA, an increase of 8.3 E-08 atm-cc was observed. Vacuum @ 2.75e-06T.

Tuesday, August 06, 2024, 16:50: Re-connected He. FS#3 Charged with 20 PSI He. Increase to from 3.6 to 9.0 E-08 atm-cc. LD TP pressure 1.0e-03T. Vacuum @ 2.59e-06T.

Tuesday, August 06, 2024, 16:52: 5.1 E-08 atm-cc. LD TP pressure 1.0e-03T. Vacuum @ 2.57e-06T. Line still @ 20 PSI.

Tuesday, August 06, 2024, 16:53: Release pressure on FS#3. 5.1 E-08 atm-cc. LD TP pressure 1.0e-03T. Vacuum @ 2.57e-06T. Line still @ 20 PSI.

Tuesday, August 06, 2024, 16:55: FS#2 Charged with 20 PSI He. Steady @ 5.1 E-08 atm-cc. LD TP pressure 1.0e-03T. Vacuum @ 2.59e-06T.

Observed increases on FS#3 & FS4.

Tuesday, August 06, 2024, 17:02: All lines purged with HPA. Allow vacuum to continue down.

Tuesday, August 06, 2024, 17:03: Close off LD to TP1B valve. Dropped to 1.7 E-08 atm-cc. LD TP pressure 1.0e-03T. Vacuum @ 2.48e-06T. Safe to vent LD.

Tuesday, August 06, 2024, 17:06: LD vented & disconnected.

Wednesday, August 07, 2024, 09:15: Vacuum @ 6.43e-07T. Gradually refill the waterlines. 

Wednesday, August 07, 2024, 09:20: FS#5 open. Vacuum remains steady.

Wednesday, August 07, 2024, 09:28: FS#2 open. Vacuum @ 6.38e-07T.

Wednesday, August 07, 2024, 09:30: FS#4 open. Vacuum @ 6.38e-07T. Wait 5 min.

Wednesday, August 07, 2024, 09:35: Vacuum steady @ 6.36e-07T. Occasional dip to 6.27e-07T.

Wednesday, August 07, 2024, 09:36: FS#3 open. Vacuum steady. Wait 5 min.

Wednesday, August 07, 2024, 09:41: No change to vacuum.

While the helium did get through on yesterdays tests as a minor molecular leak, the water does not appear to have an affect. Moving to an empty HV test.

Wednesday, August 07, 2024, 09:53: Vacuum 6.20e-07T.

Wednesday, August 07, 2024, 10:43: Vacuum 6.20e-07T. IG1 & TP off.   -   venting test stand for target installation

Wednesday, August 07, 2024, end of day.  mass marker target installed in test stand with side foil removed so the target is visible through the view port. vacuum roughed, then turbo pumps turned on at end of day for overnight pumping

Thursday, August 08, 2024, 09:19 - vacuum at 6.27e-7T. water cooling was switched on. no effect on vacuum. TGHT and TBHT began ramping at 1A/30s. will test high voltage at low heat and at high heat.

 Thursday, August 08, 2024, 10:04   HV at 35kV. No sparks.  TGHT TBHT at <80A throughout HV ramp and plateau

Thursday, August 08, 2024, 10:14    BIAS down.  TGHT TBHT at 100A. increasing ramp rate to 1.7A/10s. heating up to 480/230

 Thursday, August 08, 2024, 13:59  BIAS has slowly been brought to 28kV . no sparks at all, despite being over 24kV for ~50min. 

Thursday, August 08, 2024, 14:00 increasing TGHT to 580A to attempt to induce sparks. 

Thursday, August 08, 2024, 14:42   at TGHT TBHT 580 230, HV bias at 28kV (with EZL and EE at 0 and 0), no sparks at all over the ramp and over 10 minutes at this condition. 

Thursday, August 08, 2024, 14:43 ramping HV to 30kV

Thursday, August 08, 2024, 15:01  - -  no sparks at 30kV.   bringing up EZL to 13kV  (EE=0)

Thursday, August 08, 2024, 15:11   -  no sparks with EZL at 13kV.  bringing up EE to -2500V

Thursday, August 08, 2024, 15:13  - no sparks with EE at -2500kV

 Thursday, August 08, 2024, 15:22   turned on beam optics to observe beam out, but no beam currently detected on FC0, nor on the wire scanners, nor on FC6. This target commonly has a normal beam output of primarily Na and K

Thursday, August 08, 2024, 15:50  have not been able to deduce reason for lack of beam. increasing BIAS to 50kV.

Thursday, August 08, 2024, 15:51  during ramp up, at 38kV, many optics elements tripped and switched off. however, no spark was registered at the strip tool. not sure of the cause for this.

Thursday, August 08, 2024, 15:54  at 38.8kV, a small spark, only registered on BIAS:RDCUR  (no voltage drop), tripped off beam elements prior to FC0 again.

Thursday, August 08, 2024, 16:00 BIAS at 40kV. no sparks apart from those mentioned immediately above. still have not registered any beam on FC0.

 Thursday, August 08, 2024, 16:02 Vacuum pressure has raised from 6.5e-7 to 1.3e-6 T.

Thursday, August 08, 2024, 16:03  just now, there was a spike drop in pressure and optics elements have shut down again. nothing registered on BIAS, EZL, or EE.

Thursday, August 08, 2024, 16:11   a spark occurred at 43.3 kV

 Thursday, August 08, 2024, 16:23  this spark was audible at the test stand --- ie, not inside

 Thursday, August 08, 2024, 16:51  Saw no indication overall of the same HV sparking issues that we saw with the previous two targets. However, we were unable to generate beam  register any beam output on FC0, FC6, or wire scanners.  And we don't mean 'low signal'. Actually nothing at all.

Thursday, August 08, 2024, 16:54   Ramping down TGHT TBHT now

Friday, August 09, 2024, 08:05   turbo pumps off and spinning down in preparation to vent. will remove the inner foil from the target to observe if a change in shine from the target induces sparking as before. 

Friday, August 09, 2024, 08:58   turbo pumps no longer spinning. venting now.

Friday, August 09, 2024, 10:26    foil stripped off the target. there was a hole in the source for gas (febiad/mass marker). This hole is now plugged. reinstalled, roughing.

Friday, August 09, 2024, 11:59   vacuum at 1.2e-5T.  turning on water cooling lines.  no effect on vacuum.

Friday, August 09, 2024, 12:50 heating TGHT TBHT at 1A/30s

Friday, August 09, 2024, 13:47 increasing heating rate to 1.7A/10s, up to 580/230A

Friday, August 09, 2024, 14:42  TGHT TBHT at 550 230,  increasing BIAS to 30kV 

Friday, August 09, 2024, 15:03   BIAS at 30kV.  no sparks other than a single small one at 25kV. No beam detected at FC0, FC6, or wire scanners.

 Friday, August 09, 2024, 15:18 increased BIAS again. there was one spark at 35kV, then it was stable for 8 minutes with no sparks. still no signal on FC0.  This lack of signal is highly irregular, and should not be the case despite being an empty target. Will have to compare to the next target in the test stand. To attempt to correct, we have:

- manually adjusted gain

- reset bias

- flipped polarity back and forth

- confirmed FC in position

- confirmed no flagged power supply issue

- confirmed clear beam line to FC0

- confirmed upsteam optics are tuned appropriately

Friday, August 09, 2024, 15:23  cooling target and ramping down HV

 Friday, August 09, 2024, 16:06 TGHT TBHT at 0. turbo pumps off and spinning down.

Tuesday, March 02, 2021, 11:40: Fully reset

TGHT / TBHT set to 20 A ok. Anode w/ 30 V. ok.

Tuesday, March 02, 2021, 11:42: 10 A on coil. Increment was at 75 A. Set back to 1 A.

Tuesday, March 02, 2021, 11:44: BIAS / EE / EZL @ 1 / 0.5 / 1 kV.

Friday, June 07, 2013, 08:42: Restarted Q2, Q4 and MB1

Anders Mjos wrote:

Friday, June 07, 2013, 08:42: Restarted Q2, Q4 and MB1

 Monday, June 10, 2013, 08:16: Restarted Q2 and Q4

 Monday, June 10, 2013, 16:44: Restarted Q2 and Q4. A dip in coil current and voltage was seen at the same time.

Tuesday, June 11, 2013, 08:41: Restarted Q1, Q2 and Q4

Tuesday, June 11, 2013, 10:36: Restarted Q2 and Q4. No sign of sparks

Tuesday, June 11, 2013, 11:06: Restarted Q1, Q2, Q4 and CBC. No sign of sparks

Tuesday, June 11, 2013, 11:52: Restarted Q1, Q2 and Q4

Tuesday, June 11, 2013, 14:40:  Restarted Q1, Q2, Q4 and CBC.

TPS:Q2 and TMS:MB1 failed during the scan. -> restarted.

Tuesday, June 08, 2021, 08:25: IV4 open. Optics set minus TPS:CB2. Shows as green 'on', set to 500V, however read back shows as 0 V.

Wednesday, June 09, 2021, 08:37: HV off. Attempts made to restart TPS:CB2 unsuccessful. Controls notified.

Wednesday, June 09, 2021, 11:49: Card replaced by controls. Verified "Ok"  in " LB Mode": RDVOL, RDCUR, RDDAC all similar. Operational again.

All TPS optics, with the exception of TPS:Q4 cannot be turned off. E-Fault#6395 for Controls.

Same for the TSG optics: CB1, VCB1 and CBC.

Talked to Evgeniy and Kazuya. Optics are OFF now.

Monday, April 11, 2022, 13:58: Controller for TP6 is dead. Literally smokes if you try to use it.

Monday, April 11, 2022, 14:51: TP6 Controller is replaced. TP6 on.

 Sunday, July 10, 2022, 22:19: A trip was noted on TP2. the backing pressure is quite high. Shutting off the turbo pumps for the beamline side.

Monday, July 11, 2022, 06:01: Venting.

Monday, July 11, 2022, 08:12: RP1 off.

Monday, July 11, 2022, 09:01: RP changed. SN#LPA49885

Monday, July 11, 2022, 09:02: Down to 0.032T Fast. TP2 & TP6 on.

Monday, July 11, 2022, 09:08: Pumps up to speed. IG6 on.

TP1B high frequency noise is coming and going. Power is 22W , current 1.1A (other pumps are 11W and 14W, 0.7A)

Edi from vacuum group notified. He will replace the pump today.

Tuesday, August 20, 2013, 08:40: Turbos off. Vacuum 1.4E-7 T

Tuesday, August 20, 2013, 10:01: Started venting.

Turbo has been replaced by Edi.

Tuesday, August 20, 2013, 16:28: Roughing

Tuesday, August 20, 2013, 16:51: Turbos started.

TP1A timed out. Could not open BV1A and restart due to too high backing pressure at CG1A

Wednesday, August 21, 2013, 08:17: Turbos started. Vacuum 0.043 T

Wednesday, August 21, 2013, 08:25: Turbos at speed. TP1B: 1.2A 28W 30 deg C.

Wednesday, August 21, 2013, 08:27: Vacuum at 5.6 E-6 T

possibly due to HV spark

Tuesday, December 16, 2014, 10:24: Starting TP1B and TP6

Tuesday, December 16, 2014, 10:26: Both turbos at speed. Power 15 W and 17 W.

Tuesday, December 16, 2014, 11:37: Happened again. Restarted.

Monday, August 26, 2013, 14:07: The turbo could be restarted, but it does not sound happy (Dimo was consulted earlier today). The pump is drawing around 4 A. The current draw is fluctuating between 3.5 and 4.2 A at the same time as backing pressure is spiking from 0.015 to 0.045 T

Monday, August 26, 2013, 15:32:: The turbo failed again. Dimo had a quick look. It will have to be replaced. See e-fault: 6953

Wednesday, August 28, 2013, 08:48: Stopping TP1B. Vacuum at 4.8 E-7 T

Wednesday, August 28, 2013, 10:59: Venting

Anthony has replaced the pump. There was no screen on the existing pump. A screen has been installed in front of the turbo.

Wednesday, August 28, 2013, 14:03: started roughing

Wednesday, August 28, 2013, 14:31: Starting turbos

Wednesday, August 28, 2013, 14:41Turbos at speed

Wednesday, August 28, 2013, 14:43: Vacuum at 2.0 E-5 T

Found TMSTP6 off, restarted it, seems fine now (drawing 0.8A)